The Boeing 777X was launched in November 2013 and will feature a 20% fuel efficiency improvement compared to previous generation aircraft.



This newest Boeing family of twin-aisle aircraft builds on the original 777 that was launched in the 1990s. Production of the 777X is scheduled to begin in 2017 and first delivery is targeted for 2020. The family includes the 777-8X and the larger 777-9X, both delivering significant fuel efficiency improvements. This is due to its utilisation of advanced technology and design throughout the aircraft, but one aspect really stands out: the 777X will have the industry’s longest composite wing.

The fourth-generation 777X composite wing has a longer span – seven metres longer than today’s 777 – to maximise fuel efficiency. Meanwhile, by incorporating a folding wingtip into the design, the airplane will have complete compatibility for airport gates that currently accommodate today’s Boeing 777.

The 777X also makes use of one of the most advanced, fuel-efficient commercial engines ever built in GE Aviation’s GE9X engine – see page 116 for details.         

The combination of new engine technology, improved aerodynamics and the new high-efficiency composite wing will deliver substantial improvements in fuel efficiency and lower CO2 emissions to the world’s largest twin-engine jet.